Charge-forming device



F. DIAND W. O. HECTOR.

CHARGE FORMING DEVICE.

APPLICATION FILED JUNE 15, l9l6.

1,32 ,199, Patented Jan.13,1920.

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F. 0. AND w. Q. HECTOR; CHARGE FORMING DEVICE.

APPLICATLON FILED JUNE 15, 1916.

1,328, 199. 1 Patnted Jam-13, 1920.

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UNITED STATES PATENT OFFICE.

FLOYD D. HECTOR AND WILLIAM Q. RECTOR, OF LOUISVILLE, KENTUCKY.

CHARGE-FORMING DEVICE.

Specification of Letters Patent.

Patented Jam 13, 1920.

Application filed .Tune 15, 1916. Serial No. 103,794.

To all whom it may concern:

Be it known that we, FLOYD D. REo'roR and WILLIAM Q. R oToR, citizens ofthe United States, and residents of Louisville, in the county ofJefferson and State of Kentucky, respectively, have invented certain newand useful Improvements in Charge- Forming Devices forInternal-Combustion Engines, of which the following is a specification.

The present invention relates to the art of internal combustion enginesand has particular reference to new and useful improvements in chargeforming devices for use in connection with said art.

It is well known to those skilled in the art that the charge formingdevices now in. use do not render the desired result, principallybecause of the universal use of hydrocarbon as the power element. Theuse of hydrocarbon is principally objectionable because of thedeleterious eflect .of the same upon the cylinders, valves and pistonsof the internal. combustion engine, due essentially to the formation ofcarbon on parts exposed to the action of the explosive compound. Thesedefects caused by the use of hydro-carbon and the like are emphasized bythe failure of the present type of charge forming devices to provide aproper mixture, which latter is essential to the efficient operation ofall internal combustion engines, particularly when running under adverseconditions at high speed.

Therefore, the primary object of our invention is to provide a chargeforming device for use in connection with internal combustion enginesand the like having an improved and novel mixing means associatedtherewith. whereby to provide the proper proportion of air and gas toform a most highlv eflicient mixture.

Another object of our invention is to pro- "vide a device of the classdescribed which when in use obviates the necessity of employinghydrocarbon as an explosive element. the device of our inventionpreferably employing acetylene gas generated on the motor vehicle in theusual manner, a supply of carbid being provided.

A further object of our invention is to provide a charge forming deviceemploying a gaseous power element other than hydrocarbon having new andimproved means for automatically troiling the admission of air when theengine to which the device is attached increases or decreases its speed.

Other objects and advantages to be de: rived from the use of ourimproved charge forming device will appear from the following detaildescription and the claims, taken with the accompanying drawings, inwhich:'

Figure 1 is a vertical longitudinal seo-.

tional view of a charge forming device embodying the improvements of ourinvention;

Fig. 2 is a top plan view of the same;

Fig. 3 is an end elevational view of the same;

Fig. 4- is a fragmental enlarged detail of the high speed chargecontrolling mechanism; and

Fig. 5 is an enlarged detail sectional View of the low speed gas inletvalve.

Referring more particularly to the drawings, wherein similar charactersof reference designate like and corresponding parts throughout thevarious views, 1 indicates the main body of our improved charge formingdevice, the same having a gas inlet opening 2 associated therewith. Apartition 3 extends aoross the upper end of-the body or gas chamber 1and is provided with a plurality of openings 4 and 5 for a purpose whichwill hereinafter appear.

The body 1 is extended to form a neck 6 having an annular flange 7 onthe, upper free end thereof, said flange being adapted for connection tothe inlet manifold of the usual internal combustion engine. 'The mainthrottle valve 8 of the butter-fly type The top wall 13 is provided'withan opening 14\ adjacent the outer end thereof in which is receivable avalve seat member 15. said valve seat member having a flange 16 throughwhich screws 17 pass for securing the valve seat member to the top wall13.

The valve seat member 15 is provided with a diametrically extendingbrace member 18 in which is sljdably operable a valve rod 19, a diskvalve20 being carried bysaid rod and engageable with the under bevelededge 21 of the valve seat member 15. A head 22-is carried by the rod 19,a rock-arm 23 being pivoted at 24 to a bracket 25 serving to engagebeneath said head. The valve 20 serves as an air inlet valve, the samebeing associated operably with the low speed gas inlet valve of thedevice.

The low speed valve, while being shown in Fig. 11 is bestshown in Fig. 5and includes a tubular externally threaded supporting member 27adjustably arranged in a flanged opening 28 formed in the top wall 13.The lower free end of the supporting member 27 is open to receive thecoil spring 29, said coil spring 29' surrounding an operating rod 30reciprocally mounted in said tubular member. The lower end of the rod 30carries a head 31, said head being engageable by the lower free end ofsaid spring 29, a needle point 32 extending from said head forengagement in the opening 5 in the partition 3.

The upper free end of the rod 30 is threaded and" an adjusting head 33is receivable thereon, the rock-arm 23 being connected with the rod 30by virtue of the provision of the coil spring 34 interposed between thefree end of said rock-arm and said adjusting head 33. The outer end ofthe supporting element 27 is provided with a knurled head 35.

The high speed valve is composed of a valve rod 36 verticallyreciprocable in a tubular bearing member 37 adjustably engaged with thetop wall 13, a coil spring 38 being arranged about said rod 36 andengaging said supporting member and a head 39 carried by the rod. Aneedle point 40 is also carried by the lower free end of the rod; forengagement in the opening 4, at times.- The rod 36 is to besimultaneously moved. withthe throttle. valve 8, therefore,

the'eupper free end ofsaid rod is provided with aloop 41, the free endof which is adapted to engage :a U-shaped bracket mem ber 42 arranged ona setscrew' 43 passing through a block 44 carried by the shaft 9.One'portion of the U-shaped member 42 is rounded as at 45 to permit theend of the loop 41 to ride thereon to operate thevalve in-the opening4-when the throttle valve 8 isi moved. A knurled head 46 is carried bythe freeEend of the screw 43.

In use acetylene gas is fed to'the body 1 through the inlet 2. Uponstarting the en- I gine the suction caused by such action willintermittently open and close the valve 20 and the needle valve 32,causing the proper mixture of gas-and air. The partition 12 deflects theairdownwardly to a point adj acen't the gas. inlet of the low speedvalve insuring the proper mixture.

Asthe throttle. valve 8 is opened further to. increase; the speed of theengine-the air' supply remains approximately constant, but necessarilythere must be a larger supply of gas. For this purpose we have providedthe high speed valve member 40 which is automatically opened as thethrottle valve 8 is opened, by virtue of the engagement of the U-shapedmember 42 with the hook 41.

The vertical movement of the valve 40 may be controlled by adjustment ofthe-U- shaped member 42 to various radii causing a longer or shorterstroke to the high speed valve.

From the foregoing it will be seen that we have provided a simple anddurable charge forming device for internal combustion engines which,while capable of using hydrocarbon when vaporized, preferably 1s to beused in connection with acetylene gas. We have, under actual test, foundthat we are able to reduce the operating expenses of a motor vehiclemore than three-fourths. Not only does the use of our improved chargeforming device when used with acetylene gas reduce the expenses ofoperat ing a motor vehicle, but also permits of greater speed with thesame type of motor.

From the above description taken in connection with the accompanyingdrawings, it is thought that a clear and comprehensive understanding ofthe construction, operation and advantages of our invention may be had,and while we have shown and described the device as embodying a specificstructure, we desire that it be understood that such changes may be madein said structure as do not depart from the spirit and scope of theinvention as claimed.

Having thus fully described our inven tion, what we claim as new anddesire to secure by Letters Patent, is

1. In a charge forming device, a body having gas and air inlet openingsand an outlet opening therein, gas and air chambers in said body, amixing chamber in the body communicating with the gas and air chambersand the outlet opening, means, in the mixing chamber for regulatingcommunication between the same and the gas chamber,

adjustable spring means engaged with said regulating means for yieldablyseatingthe' same, a suction controlled valve arranged in the air inletopening and connected to the:

adjustable spring means of said regulating means, a cut off in theoutlet opening, and

other means in the mixing chamber for regulatingcommunication betweenthe same and the gas chamber, said other regulating means beingconnected with the cut off and operable thereby at predeterminedperiods.

2. In a charge forming device, a body having gas and air inlet openingsand an outlet opening therein, gas and air chambers in said body, amixing chamber in the body communicating with the gas and air chambersand the outlet opening, means movably arranged in the mixing chamber forregulating communication between the same and the gas chamber, springmeans engaged with said regulating means for normally seating the same,a suction controlled valve arranged in the air inlet opening andconnected to the spring means of said regulating means, a cut off in theoutlet opening, an adjustable bracket carried by said out off, and othermeansin the mixing chamber for regulating communication between the sameand the gas chamber extending into engagement with said adjustablebracket and operable upon movement of the cut off at predeterminedperiods.

8. In a charge forming device, a body having gas and air inlet openingsand an outlet opening therein, superposed gas and mixing chambers insaid body, an air chamber in the body arranged laterally of said mixingchamber, a partition in the air chamber extending into proximity of thebottom thereof, regulating means in the mixing chamber for controllingcommunication between the same and the gas chamber, adjustable springmeans engaged with said regulating means for normally seating the same,a suction controlled valve in the air inlet opening and connected to theadjustable spring means of the regulating means, a cut off in the outletopening, an adjustable bracket carried by said cut off, and otherregulating means in the mixing chamber for controlling communicationbetween the same and the gas chamber, said other regulating meansextending into engagement with the adjustable bracket and operable onmovement of said out off at predetermined periods.

4:. In a charge forming device, a body having gas and air inlet openingsand an outlet opening therein, superposed gas and mixing chambers insaid body, an air chamber in the body arranged laterally of said mixingchamber, a partition in the air chamber extending into proximity withthe bottom thereof for deflecting the air supply downwardly into themixing chamber to more thoroughly mix the same with the fuel supply, apair of fuel supply regulating means in the mixing chamber forcontrolling communication between the same and the gas chamber,adjustable spring means engaged with the said regulating means fornormally seating the same, a suction control valve in the air inletmeans and connected to the adjustable spring means on one of the fuelregulating means whereby to admit fuel and air through action of thesuction stroke of the engine pistons, a cutoff in the outlet opening,and the other of said fuel regulating means connected with the cutoffwhereby to increase the fuel supply when the cutoff is turned toincrease the richness of the combustible charge transferred to theengine for the purpose set forth.

5. In a charge forming device, a body having gas and air inlet openingsand an outlet opening therein, superposed gas and mixing chambers insaid body, an air chamber in the body arranged laterally of said mixingchamber, a partition in the air chamber extending into proximity withthe bottom thereof for deflecting the air. supply downwardly to themixing chamber to more thoroughly mix the same with the fuel supply, apair of valves in the mixing chamber for controlling communicationbetween the same and the gas chamber, adjustable spring means engagedwith said valves for normally seating the same, a suction control valvein the air inlet opening and connected with the adjustable spring meansof one of the fuel regulating valves whereby to admit fuel and airthrough the action of the suction stroke of the engine pistons, a cutoffin the other opening, the other of said fuel regulating valves connectedwith the cutoff whereby to increase the fuel supply when the cutoff isturned to increase the richness of the combustible charge transferred tothe engine and means for manually adjusting the operation of the secondnamed fuel supply valve for the purpose set forth.

In testimony whereof we aflix our signatures hereto.

FLOYD D. RECTOR. WILLIAM Q. RECTOR.

